Merge pull request #216 from snyk/fix/HEAD-674_restore_system_proxy

fix: restore system proxy

Author: dotkas

lib/dependencies/sub-process.ts

@@ -7,13 +7,29 @@ interface ProcessOptions {
 }
 
 function makeSpawnOptions(options?: ProcessOptions) {
-  const spawnOptions: SpawnOptions = { shell: true };
+  const spawnOptions: SpawnOptions = {
+    shell: true,
+    env: { ...process.env },
+  };
   if (options && options.cwd) {
     spawnOptions.cwd = options.cwd;
   }
   if (options && options.env) {
     spawnOptions.env = options.env;
   }
+
+  // Before spawning an external process, we look if we need to restore the system proxy configuration,
+  // which overides the cli internal proxy configuration.
+  if (process.env.SNYK_SYSTEM_HTTP_PROXY !== undefined) {
+    spawnOptions.env.HTTP_PROXY = process.env.SNYK_SYSTEM_HTTP_PROXY;
+  }
+  if (process.env.SNYK_SYSTEM_HTTPS_PROXY !== undefined) {
+    spawnOptions.env.HTTPS_PROXY = process.env.SNYK_SYSTEM_HTTPS_PROXY;
+  }
+  if (process.env.SNYK_SYSTEM_NO_PROXY !== undefined) {
+    spawnOptions.env.NO_PROXY = process.env.SNYK_SYSTEM_NO_PROXY;
+  }
+
   return spawnOptions;
 }